CN111485558A - Deep foundation pit support steel support mounting device and mounting method thereof - Google Patents
Deep foundation pit support steel support mounting device and mounting method thereof Download PDFInfo
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- CN111485558A CN111485558A CN202010313672.3A CN202010313672A CN111485558A CN 111485558 A CN111485558 A CN 111485558A CN 202010313672 A CN202010313672 A CN 202010313672A CN 111485558 A CN111485558 A CN 111485558A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The invention discloses a deep foundation pit support steel support mounting device and a mounting method thereof, wherein the device comprises a front support frame, a rear support frame, a support bracket, a positioning block and a pre-embedded bolt pre-embedded in a crown beam; the front support frame comprises a front vertical plate and a front transverse plate, the rear support frame comprises a rear vertical plate and a rear transverse plate, and the support bracket comprises a vertical plate and a bracket; during the installation, preceding riser lower part and preceding diaphragm and back riser and back diaphragm paste the card respectively and put edge around the hat roof beam, the buried bolt in advance on wearing out the back riser pre-buried bolt hole and compress tightly the back riser through the nut, preceding diaphragm and back diaphragm pass through the connecting piece and can dismantle the connection, preceding diaphragm and back diaphragm butt joint just form complete constant head tank in butt joint department, the riser pastes on the riser in the front and the bolt hole is neat and pass through bolted connection, one side of locating piece is passed through draw-in groove and is blocked simultaneously on preceding riser and riser upper portion, opposite side lower part card is in the constant head tank, hold in the palm the groove and be used for holding up steel support tip and. The invention can be repeatedly used, and has convenient installation and stability.
Description
Technical Field
The invention relates to foundation pit support, in particular to a deep foundation pit support steel support mounting device and a deep foundation pit support steel support mounting method.
Background
At present, the deep foundation pit supporting mode is to pre-embed a supporting steel plate before concrete pouring of a crown beam, then weld a bracket steel plate on the pre-embedded supporting steel plate, and then carry out steel support installation. The mode has the advantages of lower working efficiency, material waste and lower steel support stability.
Disclosure of Invention
The invention aims to provide a deep foundation pit support steel support mounting device and a mounting method thereof, which can be repeatedly used, and are convenient to mount and stable.
The technical scheme adopted by the invention is as follows:
a deep foundation pit support steel support mounting device is positioned at two ends of a steel support and comprises a front support frame, a rear support frame, a support bracket, a positioning block and an embedded bolt embedded in a crown beam; the front support frame comprises a front vertical plate and a front transverse plate which are connected in a T shape, the rear support frame comprises a rear vertical plate and a rear transverse plate which are connected in a right angle, the support bracket comprises a vertical plate and a bracket which is arranged on the outer side of the vertical plate and has an upward opening, and one side of the positioning block is provided with a clamping groove with a downward opening; during the installation, preceding riser lower part and preceding diaphragm and back riser and back diaphragm paste the card respectively and put edge around the hat roof beam, the buried bolt in advance on wearing out the back riser pre-buried bolt hole and compress tightly the back riser through the nut, preceding diaphragm and back diaphragm pass through the connecting piece and can dismantle the connection, preceding diaphragm and back diaphragm butt joint just form complete constant head tank in butt joint department, the riser pastes on the riser in the front and the bolt hole is neat and pass through bolted connection, one side of locating piece is passed through draw-in groove and is blocked simultaneously on preceding riser and riser upper portion, opposite side lower part card is in the constant head tank, hold in the palm the groove and be used for holding up steel support tip and.
Furthermore, the connecting piece comprises a wedge, a locking plate capable of swinging and a locking ring which is fixed, the locking plate and the locking ring are respectively arranged on the front transverse plate and the rear transverse plate or are opposite to each other, when the front transverse plate and the rear transverse plate are connected, the locking plate is sleeved on the locking ring, and the wedge is wedged in the locking ring and compresses and fixes the locking plate.
Further, the wedge is made of wood.
Furthermore, a plurality of connecting pieces and positioning grooves are arranged along the butt joint.
Further, connecting piece and constant head tank are arranged in turn.
Furthermore, the positioning block is plate-shaped, the positioning groove is strip-shaped, one side of the positioning block is 7-shaped, the other side of the positioning block is triangular with a wide bottom and a narrow top, and a clamping groove is formed between the 7-shaped and the triangular shape.
Furthermore, the back of the upper part of the front vertical plate is provided with an inserting limiting groove, and during installation, the lower part of the positioning block is clamped in the positioning groove, and the side part of the positioning block is clamped in the limiting groove.
Furthermore, the bracket comprises a supporting plate fixed on the vertical plate and limiting reinforcing rib plates which are simultaneously fixed with the vertical plate and the supporting plate and positioned at two sides of the supporting plate.
Furthermore, a reinforcing rib plate is arranged between the upper part of the front vertical plate and the front transverse plate.
The mounting method of the deep foundation pit support steel support mounting device comprises the following steps:
s1, installing embedded bolts, namely determining the position of the deep foundation pit supporting steel support installation device, then embedding the embedded bolts at the corresponding positions, and finally pouring and maintaining the top beams;
s2, mounting a rear support frame, namely, firstly, penetrating the pre-embedded bolt holes in the rear vertical plates through corresponding pre-embedded bolts, then, tightly clamping the rear vertical plates and the rear transverse plates on the rear sides of the crown beams, and finally, mounting nuts on the pre-embedded bolts to tightly press the rear vertical plates;
s3, mounting the front support frame, namely, firstly, tightly sticking and clamping the lower part of the front vertical plate and the front transverse plate on the front edge of the crown beam, and then, detachably connecting the front transverse plate and the rear transverse plate through a connecting piece to ensure that the front transverse plate and the rear transverse plate are butted and form a complete positioning groove at the butted part;
s4, mounting a support bracket, namely attaching a vertical plate to a front vertical plate, and connecting the vertical plate with the front vertical plate through bolts after bolt holes are aligned;
s5, mounting positioning blocks, namely aligning the positioning blocks to corresponding positioning grooves, and then clamping the positioning blocks on the front vertical plate and the upper part of the vertical plate through clamping grooves to ensure that the positioning blocks are clamped in the positioning grooves;
s6, mounting the steel support, namely clamping the steel support in the bracket, adjusting the length of the steel support, and applying prestress to ensure that the steel support and the crown beam are kept vertical and cannot move.
The invention has the beneficial effects that:
the embedded support plates are replaced by the front support frame, the rear support frame and the support brackets which are detachably connected, so that the embedded support plates can be repeatedly used, and the steel consumption is reduced; the integral installation is convenient, and the steel support can be simultaneously installed at two ends for multi-point operation, so that the construction efficiency is high; the end part of the steel support is supported and limited by the bracket, so that the stability of the steel support is improved, and the positioning block plays a further limiting role, so that the play of the front support frame and the rear support frame is avoided; the front support frame and the rear support frame are splicing pieces, the size can be adjusted at will, and the steel support frame is suitable for various sizes of crown beams and deep foundation pit steel support structures.
Drawings
FIG. 1 is a front view of an embodiment of the present invention in operation.
Fig. 2 is a cross-sectional view a-a of fig. 1.
Fig. 3 is a top view of an embodiment of the present invention in operation.
Fig. 4 is a schematic view of a front support frame and a rear support frame in an embodiment of the present invention.
FIG. 5 is a schematic view of a support bracket in an embodiment of the invention.
FIG. 6 is a schematic view of a locating block in an embodiment of the present invention.
In the figure: 1-a crown beam; 2-H section steel; 3-supporting steel; 4-rear support frame; 5-front supporting frame; 6-a support bracket; 7-positioning blocks; 8-embedding bolts; 9-a nut; 10-a gasket; 11-a bolt; 12-positioning grooves; 13-a limiting groove; 14-locking plate; 15-a locking ring; 16-a wedge; 17-rear vertical plate; 18-rear transverse plate; 19-embedding bolt holes; 20-front riser; 21-front transverse plate; 22-bolt holes; 23-a reinforcing rib plate; 24-a riser; 25-a pallet; 26-limiting reinforcing rib plates; 27-card slot.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1 to 6, a deep foundation pit support steel support mounting device is located at two ends of a steel support 3, and comprises a front support frame 5, a rear support frame 4, a support bracket 6, a positioning block 7 and an embedded bolt 8 embedded in a crown beam 1; the front support frame 5 comprises a front vertical plate 20 and a front transverse plate 21 which are connected in a T shape, the rear support frame 4 comprises a rear vertical plate 17 and a rear transverse plate 18 which are connected in a right angle, the support bracket 6 comprises a vertical plate 24 and a bracket which is arranged on the outer side of the vertical plate 24 and has an upward opening, and one side of the positioning block 7 is provided with a clamping groove 27 with a downward opening; during the installation, preceding riser 20 lower part and preceding diaphragm 21 and back riser 17 and back diaphragm 18 paste the card respectively and put around crown beam 1, pre-buried bolt 8 wears out pre-buried bolt hole 19 on the back riser 17 and compresses tightly back riser 17 through nut 9, preceding diaphragm 21 and back diaphragm 18 pass through the connecting piece and can dismantle the connection, preceding diaphragm 21 and back diaphragm 18 butt joint just form complete constant head tank 12 in the butt joint department, riser 24 pastes on preceding riser 20 and bolt hole 22 aligns and connect through bolt 11, one side of locating piece 7 is passed through draw-in groove 27 and is blocked riser 20 and riser 24 upper portion simultaneously in the front, the opposite side lower part card is in constant head tank 12, the support groove is used for holding up 3 tip of steel shotcrete and spacing.
As shown in fig. 2 to 4, in the present embodiment, a plurality of connecting members and positioning grooves 12 are provided along the butt joint, so as to improve the connection stability; the connecting pieces and the positioning grooves 12 are alternately arranged, so that the connecting effect is improved.
As shown in fig. 3 and 4, the connecting member includes a wedge 16, a locking plate 14 capable of swinging, and a locking ring 15 fixed, wherein the locking plate 14 and the locking ring 15 are respectively arranged on a front transverse plate 21 and a rear transverse plate 18 or vice versa, when the front transverse plate 21 and the rear transverse plate 18 are connected, the locking plate 14 is sleeved on the locking ring 15, and the wedge 16 is wedged in the locking ring 15 and presses and fixes the locking plate 14. Of course, the connecting member may be in other forms, for example, pin holes are formed on the front cross plate 21 and the rear cross plate 18, and the pin shaft passes through the pin holes of the front cross plate 21 and the rear cross plate 18 to realize detachable connection. Here, the wedge 21 is preferably used for fastening, so that the tolerance is provided, and the machining and installation errors are avoided. In this embodiment, the wedge 21 is made of wood, so that the cost is low and the manufacture is convenient.
As shown in fig. 3 and 4, in the present embodiment, the insertion-placement type limiting groove 13 is disposed on the back of the upper portion of the front vertical plate 20, and when the positioning block 7 is installed, the lower portion of the positioning block is clamped in the positioning groove 12, and the side portion of the positioning block is clamped in the limiting groove 13, so that the limiting effect is further improved.
As shown in fig. 3 and 4, in the present embodiment, a reinforcing rib 23 is provided between the upper portion of the front vertical member 20 and the front cross member 21.
As shown in FIG. 5, in the present embodiment, the bracket includes a blade 25 fixed to a riser 24 and a position-restricting reinforcing rib 26 fixed to both the riser 24 and the blade 25 and located on both sides of the blade 25.
As shown in fig. 6, in the present embodiment, the positioning block 7 is plate-shaped, the positioning groove 12 is strip-shaped, one side of the positioning block 7 is "7" shaped, the other side is triangle with wide bottom and narrow top, and a slot 27 is formed between the "7" shaped and the triangle, so that the positioning block is integrally formed and is convenient to process.
During installation, the nut 9 can be compressed through the gasket 10, and the added gasket 10 has the advantages of avoiding abrasion and being more uniform in stress.
The mounting method of the deep foundation pit support steel support mounting device comprises the following steps:
s1, installing the embedded bolts 8, namely determining the positions of the deep foundation pit supporting steel support installation devices, then embedding the embedded bolts 8 at the corresponding positions, and finally pouring and maintaining the top beams 1;
s2, mounting the rear support frame 4, namely, firstly, enabling the pre-embedded bolt holes 19 in the rear vertical plates 17 to penetrate through corresponding pre-embedded bolts 8 (the size of the pre-embedded bolts 8 is 8.8-level M20), then, enabling the rear vertical plates 17 and the rear transverse plates 18 to be tightly attached and clamped on the rear edge of the crown beam 1, and finally, installing nuts 9 on the pre-embedded bolts 8 to tightly press the rear vertical plates 17;
s3, mounting the front support frame 4, namely, firstly, closely sticking and clamping the lower part of the front vertical plate 20 and the front transverse plate 21 on the front edge of the crown beam 1, and then detachably connecting the front transverse plate 21 and the rear transverse plate 18 through a connecting piece to ensure that the front transverse plate 21 and the rear transverse plate 18 are butted and form a complete positioning groove 12 at the butted position;
s4, mounting the support bracket 6, attaching the vertical plate 24 to the front vertical plate 20, aligning the bolt holes 22, and connecting the vertical plate 24 with the front vertical plate 20 through bolts 11 (the size of the bolts 11 is 10.9M 20);
s5, mounting the positioning blocks 7, namely aligning the positioning blocks 7 to the corresponding positioning grooves 12, and then clamping the positioning blocks 7 on the upper parts of the front vertical plate 20 and the vertical plate 24 through the clamping grooves 27 to ensure that the positioning blocks 7 are clamped in the positioning grooves 12;
s6, mounting the steel support 3, namely clamping the steel support 3 in a bracket, adjusting the length of the steel support 3, and applying prestress to ensure that the steel support 3 and the crown beam 1 are vertical and cannot move.
In the invention, the front support frame 5, the rear support frame 4 and the support bracket 6 which are detachably connected replace the pre-buried support plates, so that the embedded support plates can be repeatedly used, and the steel consumption is reduced; the whole installation is convenient, and the steel supports 3 can be simultaneously installed at two ends for multi-point operation, so that the construction efficiency is high; the end part of the steel support 3 is supported and limited by a bracket, so that the stability of the steel support 3 is improved, and the positioning block 7 plays a further limiting role, so that the play of the front support frame 5 and the rear support frame 4 is avoided; the front support frame 5 and the rear support frame 4 are splicing pieces, the size can be adjusted at will, and the steel support frame is suitable for the structures of the crown beam 1 and the deep foundation pit steel support 3 with various sizes.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that many modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a deep basal pit support steel shotcrete installation device which characterized in that: the positioning blocks are positioned at two ends of the steel support and comprise front support frames, rear support frames, support brackets, positioning blocks and embedded bolts embedded in the crown beams; the front support frame comprises a front vertical plate and a front transverse plate which are connected in a T shape, the rear support frame comprises a rear vertical plate and a rear transverse plate which are connected in a right angle, the support bracket comprises a vertical plate and a bracket which is arranged on the outer side of the vertical plate and has an upward opening, and one side of the positioning block is provided with a clamping groove with a downward opening; during the installation, preceding riser lower part and preceding diaphragm and back riser and back diaphragm paste the card respectively and put edge around the hat roof beam, the buried bolt in advance on wearing out the back riser pre-buried bolt hole and compress tightly the back riser through the nut, preceding diaphragm and back diaphragm pass through the connecting piece and can dismantle the connection, preceding diaphragm and back diaphragm butt joint just form complete constant head tank in butt joint department, the riser pastes on the riser in the front and the bolt hole is neat and pass through bolted connection, one side of locating piece is passed through draw-in groove and is blocked simultaneously on preceding riser and riser upper portion, opposite side lower part card is in the constant head tank, hold in the palm the groove and be used for holding up steel support tip and.
2. The deep foundation pit support steel support installation device of claim 1, wherein: the connecting piece includes wedge, wobbling locking plate and fixed catch, and locking plate and catch are established respectively in the front on diaphragm and the back diaphragm or opposite, and when preceding diaphragm and back diaphragm were connected, the locking plate cover was on the catch, and the wedge just compresses tightly the locking plate fixedly in the catch.
3. The deep foundation pit support steel support installation device of claim 2, wherein: the wedge is made of wood wedge.
4. The deep foundation pit support steel support installation device of claim 1, wherein: a plurality of connecting pieces and positioning grooves are arranged along the butt joint.
5. The deep foundation pit support steel support installation device of claim 4, wherein: the connecting pieces and the positioning grooves are alternately arranged.
6. The deep foundation pit support steel support installation device of claim 1, wherein: the positioning block is plate-shaped, the positioning groove is strip-shaped, one side of the positioning block is 7-shaped, the other side of the positioning block is triangular with a wide bottom and a narrow top, and a clamping groove is formed between the 7-shaped and the triangular.
7. The deep foundation pit support steel support installation device of claim 1, wherein: the back of the upper part of the front vertical plate is provided with an inserting limiting groove, and during installation, the lower part of the positioning block is clamped in the positioning groove, and the side part of the positioning block is clamped in the limiting groove.
8. The deep foundation pit support steel support installation device of claim 1, wherein: the bracket comprises a supporting plate fixed on a vertical plate and limiting reinforcing rib plates which are simultaneously fixed with the vertical plate and the supporting plate and are positioned at two sides of the supporting plate.
9. The deep foundation pit support steel support installation device of claim 1, wherein: a reinforcing rib plate is arranged between the upper part of the front vertical plate and the front transverse plate.
10. A method for installing a deep foundation pit support steel support installation apparatus according to any one of claims 1 to 9, wherein: comprises the steps of (a) carrying out,
s1, installing embedded bolts, namely determining the position of the deep foundation pit supporting steel support installation device, then embedding the embedded bolts at the corresponding positions, and finally pouring and maintaining the top beams;
s2, mounting a rear support frame, namely, firstly, penetrating the pre-embedded bolt holes in the rear vertical plates through corresponding pre-embedded bolts, then, tightly clamping the rear vertical plates and the rear transverse plates on the rear sides of the crown beams, and finally, mounting nuts on the pre-embedded bolts to tightly press the rear vertical plates;
s3, mounting the front support frame, namely, firstly, tightly sticking and clamping the lower part of the front vertical plate and the front transverse plate on the front edge of the crown beam, and then, detachably connecting the front transverse plate and the rear transverse plate through a connecting piece to ensure that the front transverse plate and the rear transverse plate are butted and form a complete positioning groove at the butted part;
s4, mounting a support bracket, namely attaching a vertical plate to a front vertical plate, and connecting the vertical plate with the front vertical plate through bolts after bolt holes are aligned;
s5, mounting positioning blocks, namely aligning the positioning blocks to corresponding positioning grooves, and then clamping the positioning blocks on the front vertical plate and the upper part of the vertical plate through clamping grooves to ensure that the positioning blocks are clamped in the positioning grooves;
s6, mounting the steel support, namely clamping the steel support in the bracket, adjusting the length of the steel support, and applying prestress to ensure that the steel support and the crown beam are kept vertical and cannot move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313672.3A CN111485558B (en) | 2020-04-20 | 2020-04-20 | Deep foundation pit support steel support mounting device and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010313672.3A CN111485558B (en) | 2020-04-20 | 2020-04-20 | Deep foundation pit support steel support mounting device and mounting method thereof |
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| Publication Number | Publication Date |
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| CN111485558A true CN111485558A (en) | 2020-08-04 |
| CN111485558B CN111485558B (en) | 2021-06-29 |
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| CN202010313672.3A Active CN111485558B (en) | 2020-04-20 | 2020-04-20 | Deep foundation pit support steel support mounting device and mounting method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016003208A1 (en) * | 2014-07-04 | 2016-01-07 | (주)피에스테크 | Temporary soil retaining structure using steel pipe strut and method for constructing same |
| CN209482311U (en) * | 2018-11-15 | 2019-10-11 | 湖北川林装配式建筑工程有限公司 | A kind of bracing members falling proof device |
| CN209760251U (en) * | 2019-03-12 | 2019-12-10 | 中国十七冶集团有限公司 | Connecting device for deep foundation pit concrete crown beam and steel support supporting plate |
| CN209891208U (en) * | 2019-01-24 | 2020-01-03 | 中建新疆建工（集团）有限公司 | Steel shotcrete anti-falling device |
-
2020
- 2020-04-20 CN CN202010313672.3A patent/CN111485558B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016003208A1 (en) * | 2014-07-04 | 2016-01-07 | (주)피에스테크 | Temporary soil retaining structure using steel pipe strut and method for constructing same |
| CN209482311U (en) * | 2018-11-15 | 2019-10-11 | 湖北川林装配式建筑工程有限公司 | A kind of bracing members falling proof device |
| CN209891208U (en) * | 2019-01-24 | 2020-01-03 | 中建新疆建工（集团）有限公司 | Steel shotcrete anti-falling device |
| CN209760251U (en) * | 2019-03-12 | 2019-12-10 | 中国十七冶集团有限公司 | Connecting device for deep foundation pit concrete crown beam and steel support supporting plate |
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| CN111485558B (en) | 2021-06-29 |
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